How can a driver signal they are about to change lanes?

Using turn signals is the correct method for a driver to indicate their intention to change lanes. Turn signals are designed specifically to communicate a driver's next move to other road users, which enhances safety on the road. By activating the turn signal before making a lane change, drivers provide a clear, standardized signal that alerts vehicles around them of their intended direction. This helps to prevent accidents by allowing other drivers to anticipate the lane change, creating a safer driving environment for everyone.

While honking the horn, flashing headlights, or verbally announcing the maneuver might capture attention, they do not deliver the same clarity or standardization as turn signals. Turn signals are the universally recognized way to communicate a lane change, making them the most effective and safest choice.